Type about:crashes in the URL bar and hit Enter.
Click the hyperlinks to bring up the Crash Report pages and copy'n'paste the URL of each of those reports into the message box here. We'll see if we can help you figure out what is causing those crashes to happen.

https://support.mozilla.com/en-US/kb/Firefox+crashes#Getting_help_with_your_crash
Type '''about:crashes''' in the URL bar and hit Enter. <br />
Click the hyperlinks to bring up the Crash Report pages and copy'n'paste the URL of each of those reports into the message box here. We'll see if we can help you figure out what is causing those crashes to happen.

There are no crash reports whatsoever - it's *apphangs*, not crashes - and they've become nearly constant with me for the last month or two, some it may recover more or less quickly on it's own, others it just won't. That, no matter whether I disable *all* add ons, flash, or not. It just became pointless.

Just for the record, while I was typing this it froze no less than 3 (three) times - the 2 last I had to kill it to recover: